What community? In a society of hundreds of millions of people, the social safety net needs to work to protect the wellbeing of everyone, not just those who are part of this or that community. There are already many programs at various levels of government that help the elderly, as well as many non-profits, and all of them need more money, so that's an easy place to start.
Here is a program in California that I am familiar with and is absolutely life-changing for elderly people who wish to remain independent (or cannot afford other options). If this program had more money, it could hire more and better workers at higher rates with better retention and serve more people. Low-hanging fruit. A 1% tax on investment income over $100k would fund it to the moon and back. Twice.